In these verses, we hear the echo of God’s revelation of himself to Moses in Exodus 3:13-14:

Then Moses said to God, “If I come to the people of Israel and say to them, ‘The God of your fathers has sent me to you,’ and they ask me, ‘What is his name?’ what shall I say to them?”…
This is what you are to say to the Israelites: ‘I AM has sent me to you.'”